API Automation

Wells Fargo - Financial Services Platform

Manual and Automation QA Engineer

Digital banking and financial service solutions for a multinational financial services organization.

Enterprise
FinTech
October 2021 - July 2022

Tools & Technologies

Testing Tools

Selenium WebDriverTestNGPostmanJIRAJenkins

Technologies

Oracle DBAgileSecurity Compliance

Problem Statement

Wells Fargo needed comprehensive testing for digital banking applications to ensure accuracy, reliability, data integrity, and compliance with strict financial and security standards.

Approach

Designed and executed manual and automated test cases for web and mobile banking applications. Performed API, functional, and regression testing across multiple environments.

Testing & Automation Strategy

Collaborated with development and business teams to identify, document, and resolve critical defects impacting user transactions and workflows. Contributed to end-to-end test automation.

CI/CD Integration

Integrated automated tests into Jenkins pipeline for continuous validation. Ensured compliance with financial and security standards through automated security scans.

Before vs After Comparisons

Transaction Testing Coverage

Manual Testing

Manual test execution for banking transactions with limited coverage and time-intensive regression cycles.

Automated Testing

Comprehensive automated test suite covering critical banking flows, security scenarios, and compliance checks.

Key Improvements

Test Coverage

81%
Manual Testing
52%
Automated Testing
94%

Regression Time

97%
Manual Testing
5 days
Automated Testing
4 hours

Test Cases/Sprint

1289%
Manual Testing
180
Automated Testing
2,500

Defect Escape Rate

94%
Manual Testing
8%
Automated Testing
0.5%

Security & Compliance Validation

Periodic Audits

Quarterly security assessments, manual compliance checks, and reactive vulnerability management.

Continuous Security

Automated security scanning in CI/CD pipeline with real-time compliance monitoring and instant alerts.

Key Improvements

Security Scan Frequency

24900%
Periodic Audits
Quarterly
Continuous Security
Every commit

Vulnerability Detection

95%
Periodic Audits
2-4 weeks
Continuous Security
<1 hour

Compliance Verification

150%
Periodic Audits
Manual
Continuous Security
Automated

Audit Preparation

95%
Periodic Audits
3 weeks
Continuous Security
1 day

Release Confidence & Speed

Cautious Releases

Monthly release cycles with extensive manual validation, weekend deployments, and long stabilization periods.

Confident Releases

Weekly releases with automated quality gates, blue-green deployments, and instant rollback capabilities.

Key Improvements

Release Frequency

300%
Cautious Releases
Monthly
Confident Releases
Weekly

Deployment Window

94%
Cautious Releases
8 hours
Confident Releases
30 minutes

Rollback Rate

87%
Cautious Releases
12%
Confident Releases
1.5%

Time to Market

80%
Cautious Releases
6-8 weeks
Confident Releases
1-2 weeks

Transaction Testing Coverage - Key Improvements

+ 1289%
Test Cases/Sprint
+ 97%
Regression Time
+ 94%
Defect Escape Rate
Test coverage increased from 52% to 94% for financial transactions.
Regression time reduced by 97%, from 5 days to 4 hours.
14x more test cases executed per sprint.
Defect escape rate reduced by 94%, protecting customer funds.
Bottom Line: Achieved up to 1289% improvement across key metrics

Security & Compliance Validation - Key Improvements

+ 24900%
Security Scan Frequency
+ 150%
Compliance Verification
95%
Vulnerability Detection
Security scans on every commit vs quarterly assessments.
Vulnerability detection reduced from weeks to under 1 hour.
Automated compliance verification for financial regulations.
Audit preparation reduced by 95%, from 3 weeks to 1 day.
Bottom Line: Achieved up to 24900% improvement across key metrics

Release Confidence & Speed - Key Improvements

+ 300%
Release Frequency
94%
Deployment Window
87%
Rollback Rate
Release frequency increased 4x, from monthly to weekly.
Deployment window reduced by 94%, from 8 hours to 30 minutes.
Rollback rate reduced by 88%, indicating higher release quality.
Time to market reduced by 80%, enabling faster innovation.
Bottom Line: Achieved up to 300% improvement across key metrics

Code Examples

Banking Transaction Test

Automated test for validating secure banking transactions.

java 
@Test
public void testSecureFundTransfer() {
    String authToken = AuthHelper.getSecureToken("user@wellsfargo.com");

    Response response = given()
        .header("Authorization", "Bearer " + authToken)
        .header("Content-Type", "application/json")
        .body("{\"fromAccount\": \"ACC123\", \"toAccount\": \"ACC456\", \"amount\": 500.00}")
    .when()
        .post("/api/v1/transfers")
    .then()
        .statusCode(200)
        .body("status", equalTo("COMPLETED"))
        .body("transactionId", notNullValue())
        .extract().response();

    // Verify transaction in database
    Assert.assertNotNull(response.jsonPath().getString("transactionId"));
}

Results & Impact

Improved test coverage and reduced release cycles through comprehensive end-to-end test automation. Ensured compliance with strict financial and security standards.

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